" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
20+3=23
20-3=17
20x3=60
A+B = 23 ...... I
A-B = 17 ........II
''''''''''''''''''''''
2A = 40
A = 20 .......III
III en I
A+B = 23
20 + B = 23
B = 23-20
B = 3
AxB = 20x3 = 60